Combining rTMS with CBT for treating OCD

Priming Cognitive Flexibility with RTMS to Enhance CBT for OCD: a Pilot Study

PHASE1 · Sunnybrook Health Sciences Centre · NCT06840951

This study is testing if combining a brain treatment called rTMS with therapy can help people with obsessive-compulsive disorder feel better.

Quick facts

PhasePHASE1
Study typeInterventional
Enrollment10 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorSunnybrook Health Sciences Centre (other)
Locations1 site (Toronto, Ontario)
Trial IDNCT06840951 on ClinicalTrials.gov

What this trial studies

This study investigates the effectiveness of combining repetitive transcranial magnetic stimulation (rTMS) with cognitive behavioral therapy (CBT) for patients with obsessive-compulsive disorder (OCD). The approach aims to enhance cognitive functioning through rTMS before initiating CBT, potentially leading to improved treatment outcomes. Participants will undergo rTMS treatment followed by CBT, with the goal of assessing whether this combination can better address the cognitive deficits often associated with OCD. The study is designed as a pilot test to evaluate the clinical benefits of this novel therapeutic strategy.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-65 who experience clinically significant OCD symptoms and are stabilized on medication.

Not a fit: Patients with severe mood disorders, psychotic disorders, or active medical conditions requiring urgent intervention may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly improve treatment responses for patients with OCD by enhancing cognitive functioning.

How similar studies have performed: While rTMS has shown moderate therapeutic effects in OCD, this specific combination with CBT is a novel approach that has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* between the ages of 18-65
* experiencing clinically significant obsessive-compulsive symptoms based on the Yale-Brown Obsessive Compulsive Scale (YBOCS; score \> 16)
* if on medications for OCD, must be stabilized, i.e., are currently receiving an adequate dose (equivalent of 40mg/day of fluoxetine) for an adequate duration (at least 8 weeks) prior to the initiation of the study

Exclusion Criteria:

* concurrent diagnosis of a severe mood disorder, schizophrenia or other psychotic disorders, or substance abuse/dependence
* suspected organic pathology
* an active comorbid medical condition that may require urgent intervention during the treatment

Where this trial is running

Toronto, Ontario

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Obsessive Compulsive Disorder, Obsessive compulsive disorder, Repetitive transcranial magnetic stimulation, Cognitive behavioural therapy, Flexibility, Neuroplasticity, Neurocognition

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.